TWI405114B - Touch panel having a speaker function and liquid crystal display apparatus - Google Patents
Touch panel having a speaker function and liquid crystal display apparatus Download PDFInfo
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- TWI405114B TWI405114B TW095119279A TW95119279A TWI405114B TW I405114 B TWI405114 B TW I405114B TW 095119279 A TW095119279 A TW 095119279A TW 95119279 A TW95119279 A TW 95119279A TW I405114 B TWI405114 B TW I405114B
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
- G06F1/1605—Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
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Abstract
Description
本發明揭示內容係關於一種具有一觸摸面板之顯示裝置，且更特定而言係關於一種具有一帶有揚聲器功能之觸摸面板之顯示裝置。SUMMARY OF THE INVENTION The present invention is directed to a display device having a touch panel, and more particularly to a display device having a touch panel with a speaker function.
一般而言，一觸摸面板係用於一影像顯示器件中，例如一液晶顯示(LCD)器件。一觸摸面板可用來替代或與其它諸如(例如)一鍵盤或一滑鼠之輸入器件結合使用。觸摸面板可感測到指向一顯示於一影像顯示器件上之字母或影像的一使用者手指或一物件之位置坐標。In general, a touch panel is used in an image display device, such as a liquid crystal display (LCD) device. A touch panel can be used in place of or in combination with other input devices such as, for example, a keyboard or a mouse. The touch panel senses the position coordinates of a user's finger or an object pointing to a letter or image displayed on an image display device.
存在多種用於一觸摸面板之操作方法，例如，一電容性疊加技術、一電阻性疊加技術、一紅外線光束技術、一表面聲波技術或一壓電效應技術。There are a variety of methods of operation for a touch panel, such as a capacitive stacking technique, a resistive stacking technique, an infrared beam technique, a surface acoustic wave technique, or a piezoelectric effect technique.
根據電阻疊加技術，多個透明電極形成於兩個透明支撐基板上。該等透明電極以一固定間隔彼此面對。一氣隙形成於透明電極之間以防止電短路。當一電流流至透明電極時，由於透明電極之電阻，故向該等透明電極之每一個施加一電壓。當手指接觸支撐基板時，兩個透明電極彼此接觸。作為一結果，兩個透明電極之電阻因該兩個透明電極之一並行連接而變化，且一施加至該兩個透明電極之電壓因在該兩個透明電極之間流動之電流而改變。因此，可藉由一電壓變化偵測出一被觸摸之位置。According to the resistance stacking technique, a plurality of transparent electrodes are formed on two transparent support substrates. The transparent electrodes face each other at a fixed interval. An air gap is formed between the transparent electrodes to prevent electrical shorting. When a current flows to the transparent electrode, a voltage is applied to each of the transparent electrodes due to the resistance of the transparent electrode. When the finger contacts the support substrate, the two transparent electrodes are in contact with each other. As a result, the resistance of the two transparent electrodes is changed by the parallel connection of one of the two transparent electrodes, and a voltage applied to the two transparent electrodes is changed by the current flowing between the two transparent electrodes. Therefore, a touched position can be detected by a voltage change.
一用於可攜式電器件(例如，蜂巢式電話、個人數位助理(PDA)及可攜式媒體播放器(PMP))中之揚聲器可藉由一習用揚聲器採用之方法將一電信號轉變成一聲音。根據一習用揚聲器採用之方法，將一聲音轉變成一電信號且藉由一電線或電波將該電信號傳送至一揚聲器。該揚聲器藉助一振動膜使空氣振盪且該空氣之振盪重新產生並傳輸聲音。在此過程中，習用揚聲器需要一大體積及一諸如(例如)錐形及橢圓形之特定形狀以引起共振。當揚聲器包括陶瓷材料時，習用揚聲器之製造過程可在一高溫下實施。此外，在習用技術中，係單獨地形成觸摸面板及揚聲器。A speaker for use in a portable electrical device (eg, a cellular telephone, a personal digital assistant (PDA), and a portable media player (PMP)) can convert an electrical signal into a method by a conventional speaker. sound. According to a method used by a conventional speaker, a sound is converted into an electrical signal and transmitted to a speaker by a wire or an electric wave. The speaker oscillates the air by means of a diaphragm and the oscillation of the air regenerates and transmits the sound. In this process, conventional speakers require a large volume and a specific shape such as a cone and an ellipse to cause resonance. When the speaker includes a ceramic material, the manufacturing process of the conventional speaker can be performed at a high temperature. Further, in the conventional technology, a touch panel and a speaker are separately formed.
本發明之實施例提供一種顯示裝置，其包括具有一揚聲器功能之一觸摸面板。Embodiments of the present invention provide a display device including a touch panel having a speaker function.
根據本發明之一實施例。一觸摸面板包括一第一支撐基板、一面向該第一支撐基板之第二支撐基板、一形成於該第一支撐基板上之第一透明電極、一形成於該第二支撐基板上之第二透明電極、一形成於該第一與該第二透明電極之間的第三透明電極、一形成於該第一與第三透明電極之間的介質層、及一形成於該等第二與第三透明電極之間的壓電層。According to an embodiment of the invention. The touch panel includes a first support substrate, a second support substrate facing the first support substrate, a first transparent electrode formed on the first support substrate, and a second formed on the second support substrate. a transparent electrode, a third transparent electrode formed between the first and second transparent electrodes, a dielectric layer formed between the first and third transparent electrodes, and a second and a second A piezoelectric layer between three transparent electrodes.
該第一及第二支撐基板之每一個皆可包括一玻璃基板、一塑膠基板、一光學膜或一偏光板。Each of the first and second support substrates may include a glass substrate, a plastic substrate, an optical film or a polarizing plate.
該壓電層可包括一聚二氟亞乙烯、一聚l-麩氨酸a-甲基 酯、一聚氯乙烯或一聚三氟乙烯。The piezoelectric layer may comprise a polydifluoroethylene and a poly-l-glutamic acid a-methyl Ester, polyvinyl chloride or polytrifluoroethylene.
該介質層可包括空氣。The dielectric layer can include air.
該介質層可進一步包括一形成於該第一透明電極上之支撐構件。The dielectric layer may further include a support member formed on the first transparent electrode.
該支撐構件可藉由如下方法所形成：一間隔片分散方法、一紫外線照射方法或一藉助一模圖案化一所期望形狀之方法。該紫外線照射方法使用一紫外線以在將光敏膜施加至該支撐構件之一上部後圖案化一形狀。The support member can be formed by a spacer dispersion method, an ultraviolet irradiation method, or a method of patterning a desired shape by a mold. The ultraviolet irradiation method uses an ultraviolet ray to pattern a shape after applying the photosensitive film to an upper portion of the support member.
根據本發明之一實施例，一觸摸面板包括一揚聲器區段及一觸摸面板區段。該揚聲器區段可包括一第一支撐基板、一第二支撐基板、一第一介質層、一第一透明電極、一第二透明電極及一壓電層。該第一介質可經形成毗鄰於該第一支撐基板。該第一透明電極可經形成毗鄰於該第一介質層並對置於該第一支撐基板。該第二透明電極可經形成毗鄰於該第二支撐基板。該壓電物質可形成於該第一與第二透明電極之間的一位置處。該觸摸面板區段可包括該第二支撐基板、一第三支撐基板、一第三透明電極、一第四透明電極及一第二介質層。該第三透明電極可經形成毗鄰於該第二支撐基板並對置於該第二透明電極。該第四透明電極可經形成毗鄰於該第三支撐電極。該第二介質層可形成於該第三透明電極與該第四透明電極之間。According to an embodiment of the invention, a touch panel includes a speaker section and a touch panel section. The speaker segment can include a first support substrate, a second support substrate, a first dielectric layer, a first transparent electrode, a second transparent electrode, and a piezoelectric layer. The first medium can be formed adjacent to the first support substrate. The first transparent electrode may be formed adjacent to the first dielectric layer and placed on the first support substrate. The second transparent electrode can be formed adjacent to the second support substrate. The piezoelectric substance may be formed at a position between the first and second transparent electrodes. The touch panel segment may include the second support substrate, a third support substrate, a third transparent electrode, a fourth transparent electrode, and a second dielectric layer. The third transparent electrode may be formed adjacent to the second support substrate and placed on the second transparent electrode. The fourth transparent electrode can be formed adjacent to the third support electrode. The second dielectric layer may be formed between the third transparent electrode and the fourth transparent electrode.
該第一支撐基板、該第二支撐基板及該第三支撐基板之每一個皆可包括一玻璃基板、一塑膠基板、一光學膜 或一偏光板。Each of the first support substrate, the second support substrate, and the third support substrate may include a glass substrate, a plastic substrate, and an optical film. Or a polarizer.
該壓電層可係一聚二氟亞乙烯、一聚l-麩氨酸a-甲基酯、一聚氯乙烯或一聚三氟乙烯。The piezoelectric layer may be a polytetrafluoroethylene, a poly-l-glutamic acid a-methyl ester, a polyvinyl chloride or a polytrifluoroethylene.
該第一介質層之厚度可大體上等於或大於約20 μm。The thickness of the first dielectric layer can be substantially equal to or greater than about 20 μm.
該第一及第二介質層可包括空氣。The first and second dielectric layers can include air.
該第一介質層可進一步包括一形成於該第一支撐基板上之支撐構件。The first dielectric layer may further include a support member formed on the first support substrate.
該第二介質層可進一步包括一形成於該第三透明電極上之支撐構件。The second dielectric layer may further include a support member formed on the third transparent electrode.
該支撐構件可藉由如下方法所形成：一間隔片分散方法、一紫外線照射方法或一藉助一模圖案化一所期望形狀之方法。該紫外線照射方法使用一紫外線以在將光敏膜施加至該支撐構件之一上部後圖案化一形狀。The support member can be formed by a spacer dispersion method, an ultraviolet irradiation method, or a method of patterning a desired shape by a mold. The ultraviolet irradiation method uses an ultraviolet ray to pattern a shape after applying the photosensitive film to an upper portion of the support member.
根據本發明之一實施例，一顯示裝置包括一顯示面板、一驅動電路構件及一觸摸面板。該驅動電路構件將一影像信號施加至該顯示面板。該具有揚聲器功能之觸摸面板可包括一第一支撐基板、一第二支撐基板、一第一透明電極、一第二透明電極、一第三透明電極、一介質層及一壓電層。該第一透明電極可形成於該第一支撐基板上。該第二透明電極可形成於該第二支撐基板上。該第三透明電極可形成於該第一與第二透明電極之間。該介質層可形成於該第一與第三透明電極之間。該壓電層可形成於該等第二與第三透明電極之間。According to an embodiment of the invention, a display device includes a display panel, a driving circuit member, and a touch panel. The drive circuit member applies an image signal to the display panel. The touch panel having a speaker function may include a first supporting substrate, a second supporting substrate, a first transparent electrode, a second transparent electrode, a third transparent electrode, a dielectric layer and a piezoelectric layer. The first transparent electrode may be formed on the first support substrate. The second transparent electrode may be formed on the second support substrate. The third transparent electrode may be formed between the first and second transparent electrodes. The dielectric layer can be formed between the first and third transparent electrodes. The piezoelectric layer can be formed between the second and third transparent electrodes.
該第一及第二支撐基板之每一個皆可包括一玻璃基板、一塑膠基板、一光學膜或一偏光板。Each of the first and second support substrates may include a glass substrate, a plastic substrate, an optical film or a polarizing plate.
該壓電層可包括一聚二氟亞乙烯、一聚1－麩氨酸a－甲基酯、一聚氯乙烯或一聚三氟乙烯。The piezoelectric layer may comprise a polydifluoroethylene, a poly-1-glutamic acid a-methyl ester, a polyvinyl chloride or a polytrifluoroethylene.
該介質層可包括空氣。The dielectric layer can include air.
根據本發明之一實施例之觸摸面板包括一具有該揚聲器區段及該觸摸面板區段之信號端子之電路板。A touch panel according to an embodiment of the present invention includes a circuit board having the speaker section and signal terminals of the touch panel section.
下文將參照附圖更全面地闡述本發明之例示性實施例。可以諸多不同形式實施本發明且不應將本發明解釋為侷限於本文所述之實施例。Exemplary embodiments of the present invention are described more fully hereinafter with reference to the accompanying drawings. The present invention may be embodied in many different forms and should not be construed as being limited to the embodiments described herein.
圖1係一根據本發明之一實施例圖解闡述一觸摸面板之示意性剖視圖。1 is a schematic cross-sectional view illustrating a touch panel in accordance with an embodiment of the present invention.
參照圖1，一觸摸面板包括一第一支撐基板111、一第二支撐基板112、一第一透明電極121、一第二透明電極122及一第三透明電極123。第一及第二支撐基板111及112包括透明玻璃。第一透明電極121形成於第一支撐基板111上。第二透明電極122形成於第二支撐電極112上。第三透明電極123設置於第一透明電極121與第二透明電極122之間。Referring to FIG. 1 , a touch panel includes a first support substrate 111 , a second support substrate 112 , a first transparent electrode 121 , a second transparent electrode 122 , and a third transparent electrode 123 . The first and second support substrates 111 and 112 include transparent glass. The first transparent electrode 121 is formed on the first support substrate 111. The second transparent electrode 122 is formed on the second support electrode 112. The third transparent electrode 123 is disposed between the first transparent electrode 121 and the second transparent electrode 122.
該觸摸面板進一步包括一壓電層130。包括(例如)一壓電聚合物之壓電層130設置於第二與第三透明電極122與123之間。當向其施以壓縮或振盪時，該壓電聚合物產生電流，且在向該壓電聚合物施加一電壓時產生振盪。該觸摸面板進一步包括一介質層141。介質層141設置於第一與第三透明電極121與123之間。該介質層141電絕緣第一與第三透明電極121及123並激活振盪。The touch panel further includes a piezoelectric layer 130. A piezoelectric layer 130 including, for example, a piezoelectric polymer is disposed between the second and third transparent electrodes 122 and 123. The piezoelectric polymer generates an electric current when it is subjected to compression or oscillation, and generates oscillation when a voltage is applied to the piezoelectric polymer. The touch panel further includes a dielectric layer 141. The dielectric layer 141 is disposed between the first and third transparent electrodes 121 and 123. The dielectric layer 141 electrically insulates the first and third transparent electrodes 121 and 123 and activates oscillation.
一第一支撐基板111及一第二支撐基板112通常包括透明玻璃。另一選擇為，第一支撐基板111及第二支撐基板112可包括(例如)透明塑膠、一光學膜及一偏光板。A first support substrate 111 and a second support substrate 112 generally comprise transparent glass. Alternatively, the first support substrate 111 and the second support substrate 112 may include, for example, a transparent plastic, an optical film, and a polarizing plate.
一薄膜揚聲器(未顯示)係一藉由一表面重組技術將一聚二氟亞乙烯(PVDF)用作一揚聲器物質之功能性揚聲器。該表面重組技術使用電漿將一材料之表面轉變成一具有親水特性或疏水特性之表面。可藉由將PVDF之一表面轉變成具有一壓電特性之塑膠將該PVDF用作一揚聲器。A film speaker (not shown) is a functional speaker that uses a polyvinylidene fluoride (PVDF) as a speaker material by a surface recombination technique. This surface recombination technique uses a plasma to transform the surface of a material into a surface having hydrophilic or hydrophobic properties. The PVDF can be used as a speaker by converting one surface of the PVDF into a plastic having a piezoelectric property.
該薄膜揚聲器通常包括兩個支撐基板、一振盪激活層、多個間隔片、一上部透明電極、一下部透明電極及一壓電層。該兩個支撐基板可係透明。當向其施加一電信號時，該振盪激活層誘發共振並放大振盪。該等間隔片支撐一形成於該振盪激活層中之一間隙。該等上部及下部透明電極設置於振盪激活層與上部支撐基板之間。該壓電層設置於上部與下部透明電極之間。當向其施以壓縮或振盪時，該壓電層產生電，且在向該壓電層施加一電壓時產生振盪。The film speaker typically includes two support substrates, an oscillation activation layer, a plurality of spacers, an upper transparent electrode, a lower transparent electrode, and a piezoelectric layer. The two support substrates can be transparent. When an electrical signal is applied thereto, the oscillation activating layer induces resonance and amplifies the oscillation. The spacers support a gap formed in the oscillation active layer. The upper and lower transparent electrodes are disposed between the oscillation active layer and the upper support substrate. The piezoelectric layer is disposed between the upper and lower transparent electrodes. The piezoelectric layer generates electricity when it is subjected to compression or oscillation, and generates oscillation when a voltage is applied to the piezoelectric layer.
壓電層130可包括一諸如(例如)聚二氟亞乙烯、聚1－麩氨酸a－甲基酯、聚氯乙烯或聚三氟乙烯之壓電聚合物。The piezoelectric layer 130 may include a piezoelectric polymer such as, for example, polydifluoroethylene, poly-1-glutamic acid a-methyl ester, polyvinyl chloride or polytrifluoroethylene.
可藉由表面重組技術將該壓電聚合物沈積於該支撐基板之一表面上以便將該表面之特性轉變成親水或疏水特性。The piezoelectric polymer may be deposited on one surface of the support substrate by surface recombination techniques to convert the characteristics of the surface into hydrophilic or hydrophobic properties.
第一透明電極121、第二透明電極122及第三透明電極123包括諸如(例如)氧化銦錫(ITO)或氧化銦鋅(IZO)之導電性及光學透明材料。因此，光可穿過第一透明電極121、第二透明電極122及第三透明電極123，且可經由第一、第二及第三透明電極121、122及123傳送一電信號。第一透明電極121及第三透明電極123將一電信號傳送至該觸摸面板。第三透明電極123及第二透明電極122將一電信號傳送至該薄膜揚聲器。The first transparent electrode 121, the second transparent electrode 122, and the third transparent electrode 123 include a conductive and optically transparent material such as, for example, indium tin oxide (ITO) or indium zinc oxide (IZO). Therefore, light can pass through the first transparent electrode 121, the second transparent electrode 122, and the third transparent electrode 123, and an electrical signal can be transmitted through the first, second, and third transparent electrodes 121, 122, and 123. The first transparent electrode 121 and the third transparent electrode 123 transmit an electrical signal to the touch panel. The third transparent electrode 123 and the second transparent electrode 122 transmit an electrical signal to the thin film speaker.
形成於第一透明電極121與第三透明電極123之間的介質層141包括一具有一固定距離之氣隙152。因此介質層141防止在第一與第三透明電極121與123之間發生一電短路。介質層141藉由對振盪之共鳴及放大將自該壓電聚合物傳遞之振盪轉變成聲音。The dielectric layer 141 formed between the first transparent electrode 121 and the third transparent electrode 123 includes an air gap 152 having a fixed distance. Therefore, the dielectric layer 141 prevents an electrical short circuit from occurring between the first and third transparent electrodes 121 and 123. The dielectric layer 141 converts the oscillation transmitted from the piezoelectric polymer into sound by resonance and amplification of the oscillation.
氣隙152之距離大體上等於或大於約20 μm以有效地誘發共振且放大振盪並將該振盪轉變成聲音。一支撐構件151形成於第一透明電極121與第三透明電極123之間以便維持氣隙152之距離。支撐構件151可具彈性，以便當使用者觸摸該觸摸面板時，支撐構件151可減輕施加至該觸摸面板之衝擊，且當在第一與第三透明電極121與123之間發生電短路時，可將電短路恢復至開路狀態。The distance of the air gap 152 is substantially equal to or greater than about 20 μm to effectively induce resonance and amplify the oscillation and convert the oscillation into sound. A support member 151 is formed between the first transparent electrode 121 and the third transparent electrode 123 to maintain the distance of the air gap 152. The support member 151 may be elastic such that when the user touches the touch panel, the support member 151 may mitigate an impact applied to the touch panel, and when an electrical short occurs between the first and third transparent electrodes 121 and 123, The electrical short can be restored to an open state.
支撐構件151可藉由(例如)如下方法所形成：一間隔片分散方法、一紫外線照射方法或一藉助一模圖案化一所期望形狀之方法。該紫外線照射方法使用一紫外光以在將光敏膜施加至該支撐構件151之一上部後圖案化一形狀。The support member 151 can be formed, for example, by a spacer dispersion method, an ultraviolet irradiation method, or a method of patterning a desired shape by a mold. The ultraviolet irradiation method uses an ultraviolet light to pattern a shape after applying the photosensitive film to an upper portion of the support member 151.
根據本發明之一實施例之觸摸面板係藉助介質層141來防止在透明電極之間發生電短路。該觸摸面板之介質層141誘發共振並放大自具有一壓電聚合物材料之壓電層130所傳遞之振盪。The touch panel according to an embodiment of the present invention prevents the occurrence of an electrical short between the transparent electrodes by means of the dielectric layer 141. The dielectric layer 141 of the touch panel induces resonance and amplifies the oscillations transmitted from the piezoelectric layer 130 having a piezoelectric polymer material.
根據本發明之一實施例，一第一電壓(例如，參考電壓)施加至一第三透明電極123，且一第二電壓施加至一第一透明電極121。當第一及第三透明電極121及123處於一電短路或一開路狀態中時，該觸摸面板依據一電流差決定一外部力。當第二支撐基板112因使用者之觸摸而彎曲時，第三透明電極123接觸第一透明電極121以改變第一與第二透明電極121與122之間的電阻及電流。因此，根據本發明之一實施例之觸摸面板偵測到指向所顯示之一字母或影像的使用者手指或物件之位置坐標。According to an embodiment of the invention, a first voltage (eg, a reference voltage) is applied to a third transparent electrode 123, and a second voltage is applied to a first transparent electrode 121. When the first and third transparent electrodes 121 and 123 are in an electrical short circuit or an open state, the touch panel determines an external force according to a current difference. When the second support substrate 112 is bent by the user's touch, the third transparent electrode 123 contacts the first transparent electrode 121 to change the resistance and current between the first and second transparent electrodes 121 and 122. Therefore, the touch panel according to an embodiment of the present invention detects the position coordinates of a user's finger or object pointing to one of the displayed letters or images.
基於該第一電壓，一根據聲音改變而變化的第三電壓施加至第二透明電極122。根據該第一電壓與該第三電壓之間的一電勢差，包括壓電聚合物材料之壓電層130向介質層141施加不同之振盪。因此，可將壓電層130用於一揚聲器功能。Based on the first voltage, a third voltage that changes according to the change in sound is applied to the second transparent electrode 122. The piezoelectric layer 130 including the piezoelectric polymer material applies a different oscillation to the dielectric layer 141 according to a potential difference between the first voltage and the third voltage. Therefore, the piezoelectric layer 130 can be used for a speaker function.
圖2係一根據本發明之一實施例圖解闡述一觸摸面板之示意性剖視圖。2 is a schematic cross-sectional view illustrating a touch panel in accordance with an embodiment of the present invention.
參照圖2，一觸摸面板包括一揚聲器區段110及一觸摸面板區段120。揚聲器區段110包括一第一支撐基板113、一第二支撐基板114、一第一介質層142、一第一透明電極124、一第二透明電極125及一壓電層330。第一介質層142形成於第一支撐基板113上。第一透明電極124形成於第一介質層142上。第一介質層142設置於第一支撐基板113與第一透明電極124之間。壓電層330形成於第一透明電極124上。壓電層330形成於第一與第二透明電極124與125之間並包括一壓電聚合物材料。第二支撐基板114形成於第二透明電極125上。Referring to FIG. 2, a touch panel includes a speaker section 110 and a touch panel section 120. The speaker section 110 includes a first supporting substrate 113, a second supporting substrate 114, a first dielectric layer 142, a first transparent electrode 124, a second transparent electrode 125, and a piezoelectric layer 330. The first dielectric layer 142 is formed on the first support substrate 113. The first transparent electrode 124 is formed on the first dielectric layer 142. The first dielectric layer 142 is disposed between the first support substrate 113 and the first transparent electrode 124. The piezoelectric layer 330 is formed on the first transparent electrode 124. The piezoelectric layer 330 is formed between the first and second transparent electrodes 124 and 125 and includes a piezoelectric polymer material. The second support substrate 114 is formed on the second transparent electrode 125.
觸摸面板區段120包括第二支撐基板114、一第三支撐基板115、一第三透明電極126、一第四透明電極127及一第二介質層143。第三透明電極126形成於第二支撐基板114上。第二介質層143形成於第三透明電極126上。第四透明電極127形成於第二介質層143上。第三支撐層115形成於第四透明電極127上。The touch panel section 120 includes a second support substrate 114 , a third support substrate 115 , a third transparent electrode 126 , a fourth transparent electrode 127 , and a second dielectric layer 143 . The third transparent electrode 126 is formed on the second support substrate 114. The second dielectric layer 143 is formed on the third transparent electrode 126. The fourth transparent electrode 127 is formed on the second dielectric layer 143. The third support layer 115 is formed on the fourth transparent electrode 127.
第二支撐基板114通常包括於揚聲器區段110及觸摸面板區段120兩者中。The second support substrate 114 is typically included in both the speaker section 110 and the touch panel section 120.
揚聲器區段110之第一介質層142包括一誘發共振並放大壓電聚合物材料之振盪的第一氣隙252。氣隙252介於一大體上等於或大於約20 μm之範圍內。觸摸面板區段120之第二介質層143包括一第二氣隙253，該第二氣隙可防止在第三透明電極126與第四透明電極127之間發生一電短路。The first dielectric layer 142 of the speaker section 110 includes a first air gap 252 that induces resonance and amplifies the oscillation of the piezoelectric polymer material. The air gap 252 is in a range substantially equal to or greater than about 20 μm. The second dielectric layer 143 of the touch panel section 120 includes a second air gap 253 that prevents an electrical short between the third transparent electrode 126 and the fourth transparent electrode 127.
第一及第二介質層142及143分別包括一第一支撐構件251及一第二支撐構件254以維持第一與第二氣隙252與253之間的距離。可藉由(例如)一間隔片分散方法或一紫外線照射方法形成第一支撐構件251及第二支撐構件254。第一支撐構件251及第二支撐構件254可具有各種形狀。The first and second dielectric layers 142 and 143 respectively include a first support member 251 and a second support member 254 to maintain a distance between the first and second air gaps 252 and 253. The first support member 251 and the second support member 254 may be formed by, for example, a spacer dispersion method or an ultraviolet irradiation method. The first support member 251 and the second support member 254 may have various shapes.
圖3係一根據本發明之一實施例圖解闡述一觸摸面板之平面圖。3 is a plan view illustrating a touch panel in accordance with an embodiment of the present invention.
一電路板160包括一揚聲器區段信號端子161及一觸摸面板區段信號端子162。當將一電信號施加至揚聲器區段信號端子161時，該電信號係藉由一介質層之壓電聚合物材料轉變成振盪。該介質層誘發共振並放大該振盪。因此該振盪被轉變成一聲音。A circuit board 160 includes a speaker segment signal terminal 161 and a touch panel segment signal terminal 162. When an electrical signal is applied to the speaker segment signal terminal 161, the electrical signal is converted to oscillation by the piezoelectric polymer material of a dielectric layer. The dielectric layer induces resonance and amplifies the oscillation. Therefore the oscillation is converted into a sound.
一固定電壓係藉由觸摸面板區段信號端子162施加至觸摸面板區段120並輸出由使用者之接觸而誘發之電流變化。A fixed voltage is applied to the touch panel section 120 by the touch panel section signal terminal 162 and outputs a current change induced by the user's contact.
圖4係一根據本發明之一實施例顯示一組配一觸摸面板與一顯示面板之方法之分解透視圖。4 is an exploded perspective view showing a method of displaying a set of a touch panel and a display panel in accordance with an embodiment of the present invention.
將自一撓性印刷電路膜220及一驅動器IC210輸出的一影像信號及一控制信號施加至一顯示面板200以顯示一影像。An image signal and a control signal outputted from a flexible printed circuit 220 and a driver IC 210 are applied to a display panel 200 to display an image.
根據本發明之實施例之觸摸面板具有一揚聲器功能及一觸摸面板功能。將具有一揚聲器功能之觸摸面板設置於顯示面板200上以使使用者可容易地觸摸該觸摸面板。將具有一揚聲器功能的觸摸面板之電路板160電連接至撓性印刷電路膜220。撓性印刷電路膜220將一影像信號及一控制信號施加至顯示面板200。因此一電信號被施加至該觸摸面板之電路板160。A touch panel according to an embodiment of the present invention has a speaker function and a touch panel function. A touch panel having a speaker function is disposed on the display panel 200 so that a user can easily touch the touch panel. A circuit board 160 of a touch panel having a speaker function is electrically connected to the flexible printed circuit film 220. The flexible printed circuit film 220 applies an image signal and a control signal to the display panel 200. Thus an electrical signal is applied to the circuit board 160 of the touch panel.
由於該觸摸面板具有一觸摸面板及一揚聲器之雙重功能，故根據本發明之實施例之觸摸面板可降低製造成本並簡化製造過程。根據本發明之實施例之觸摸面板可用於具有高解析度之顯示裝置中，例如，一可攜式電器件。Since the touch panel has a dual function of a touch panel and a speaker, the touch panel according to an embodiment of the present invention can reduce manufacturing costs and simplify the manufacturing process. The touch panel according to an embodiment of the present invention can be used in a display device having high resolution, for example, a portable electric device.
儘管已參照附圖闡述了本發明之例示性實施例，但應瞭解，本發明不應被限於此等確切實施例，而是在不背離如下文所請求之本發明精神及範疇之前提下，熟知此項技術者可進行各種改變及修改。While the present invention has been described with respect to the embodiments of the present invention, it is understood that the invention should not be construed as Various changes and modifications can be made by those skilled in the art.
110．．．揚聲器區段110. . . Speaker section
111．．．第一支撐基板111. . . First support substrate
112．．．第二支撐基板112. . . Second support substrate
113．．．第一支撐基板113. . . First support substrate
114．．．第二支撐基板114. . . Second support substrate
115．．．第三支撐基板115. . . Third support substrate
120．．．觸摸面板區段120. . . Touch panel section
121．．．第一透明電極121. . . First transparent electrode
122．．．第二透明電極122. . . Second transparent electrode
123．．．第三透明電極123. . . Third transparent electrode
124．．．第一透明電極124. . . First transparent electrode
125．．．第二透明電極125. . . Second transparent electrode
126．．．第三透明電極126. . . Third transparent electrode
127．．．第四透明電極127. . . Fourth transparent electrode
130．．．壓電層130. . . Piezoelectric layer
141．．．介質層141. . . Dielectric layer
142．．．第一介質層142. . . First dielectric layer
143．．．第二介質層143. . . Second dielectric layer
151．．．支撐構件151. . . Support member
152．．．氣隙152. . . Air gap
160．．．電路板160. . . Circuit board
161．．．揚聲器區段信號端子161. . . Speaker section signal terminal
162．．．觸摸面板區段信號端子162. . . Touch panel section signal terminal
200．．．顯示面板200. . . Display panel
210．．．驅動器IC210. . . Driver IC
220．．．撓性印刷電路膜220. . . Flexible printed circuit film
251．．．第一支撐構件251. . . First support member
252．．．第一氣隙252. . . First air gap
253．．．第二氣隙253. . . Second air gap
254．．．第二支撐構件254. . . Second support member
330．．．壓電層330. . . Piezoelectric layer
依據以上說明並結合附圖，可更詳細地理解本發明之例示性實施例，圖式中：圖1係一根據本發明之一實施例圖解闡述一觸摸面板之示意性剖視圖；圖2係一根據本發明之一實施例圖解闡述一觸摸面板之示意性剖視圖；圖3係一根據本發明之一實施例圖解闡述一觸摸面板之平面圖；及圖4係一根據本發明之一實施例圖解闡述一耦接一觸摸面板與一顯示面板之方法之分解透視圖。The exemplary embodiments of the present invention are explained in more detail in the accompanying drawings in which: FIG. 1 is a schematic cross-sectional view illustrating a touch panel according to an embodiment of the present invention; FIG. A schematic cross-sectional view of a touch panel is schematically illustrated in accordance with an embodiment of the present invention; FIG. 3 is a plan view illustrating a touch panel according to an embodiment of the present invention; and FIG. 4 is a diagram illustrating an embodiment of the present invention. An exploded perspective view of a method of coupling a touch panel and a display panel.
111．．．第一支撐基板111. . . First support substrate
112．．．第二支撐基板112. . . Second support substrate
121．．．第一透明電極121. . . First transparent electrode
122．．．第二透明電極122. . . Second transparent electrode
123．．．第三透明電極123. . . Third transparent electrode
130．．．壓電層130. . . Piezoelectric layer
141．．．介質層141. . . Dielectric layer
151．．．支撐構件151. . . Support member
152．．．氣隙152. . . Air gap
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Also Published As
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| CN1924650A (en) | 2007-03-07 |
| JP4960039B2 (en) | 2012-06-27 |
| CN1924650B (en) | 2011-07-20 |
| KR101146530B1 (en) | 2012-05-25 |
| US7903091B2 (en) | 2011-03-08 |
| JP2007066306A (en) | 2007-03-15 |
| US20070046642A1 (en) | 2007-03-01 |
| TW200710706A (en) | 2007-03-16 |
| KR20070027879A (en) | 2007-03-12 |
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